CN105009560A - Method of capturing image of document - Google Patents
Method of capturing image of document Download PDFInfo
- Publication number
- CN105009560A CN105009560A CN201380065609.0A CN201380065609A CN105009560A CN 105009560 A CN105009560 A CN 105009560A CN 201380065609 A CN201380065609 A CN 201380065609A CN 105009560 A CN105009560 A CN 105009560A
- Authority
- CN
- China
- Prior art keywords
- document
- image
- pallet
- input
- scanner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00684—Object of the detection
- H04N1/00687—Presence or absence
- H04N1/00694—Presence or absence in an input tray
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00684—Object of the detection
- H04N1/00687—Presence or absence
- H04N1/00697—Presence or absence in an output tray
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00729—Detection means
- H04N1/00734—Optical detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00742—Detection methods
- H04N1/00758—Detection methods using a prescan
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00763—Action taken as a result of detection
- H04N1/00769—Comparing, e.g. with threshold
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
- H04N1/19594—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays using a television camera or a still video camera
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0436—Scanning a picture-bearing surface lying face up on a support
Abstract
A document scanner (10) includes an input tray (30) for holding documents (20) and an input image capture device (40) for capturing images of the documents (20)in the input tray (30) prior to transporting the document for imaging; an output tray (150) for holding documents (20) after the documents (20) exit the scanner; an output image capture device (140) for capturing images of the output tray; an image processor for determining characteristics of the output tray or characteristic of the documents (20) before imaging and after the documents (20) exit the scanner; and scanner functions are modified based on the output tray characteristics or the document characteristics.
Description
cROSS REFERENCE TO RELATED reference
To be the title of filing an application on December 14th, 2012 be subject application " method (METHODOF CAPTURING AN IMAGE OF A DOCUMENT) of catching the image of document " the 13/714th, the case that continues of No. 885 U.S. patent application case, the mode that described U.S. patent application case is quoted hereby is in full incorporated herein.
With reference to following application case: people such as Chartres (Schaertel) is the 13/714th in the application that coexist of the common transfer of " checking the accuracy (VERIFYING ACCURACY OF A SCANNED DOCUMENT) through scanned document " at the title that on December 14th, 2012 files an application, No. 863 U.S. patent application case, the title that the people such as Chartres filed an application on December 14th, 2012 is the 13/714th of " for checking the system (SYSTEM FORVERIFYING ACCURACY OF A RASTER SCANNED IMAGE OF A DOCUMENT) of the accuracy through raster-scanned image of document " the, No. 901 U.S. patent application case, the title that the people such as Chartres filed an application on December 14th, 2012 is the 13/714th of " for catching the system (SYSTEM FOR CAPTURING AN IMAGE OF A DOCUMENT) of the image of document " the, No. 926 U.S. patent application case, the title that the people such as Chartres filed an application on August 18th, 2010 is the 12/858th of " document scanner (A DOCUMENT SCANNER) " the, No. 488 U.S. patent application case (being No. 2012/0044547 U.S.'s publication now), the title that the people such as Chartres filed an application on July 20th, 2010 is the 12/839th of " method (METHOD FOR DOCUMENT SCANNING) for file scanning " the, No. 476 U.S. patent application case, the people such as Chartres are the 12/839th of " document scanner (ADOCUMENT SCANNER) " the at the title that on July 20th, 2010 files an application, No. 471 U.S. patent application case, and the people such as Oman (Hammen) at the title that on November 24th, 2008 files an application be " document conveying equipment (DOCUMENT TRANSPORTAPPARATUS) " the 12/276th, No. 641 U.S. patent application case (being No. 2010/0127447 U.S.'s publication now), the disclosure of described each application case is all incorporated herein.
Technical field
The present invention relates generally to scanner, and relate in particular to the accuracy of inspection through scanned document.
Background technology
Document scanner makes document move by transport path and moves along with described document and form the digital picture of described document.The processor of document scanner has default document characteristic, and operator selection function and feature must adapt to the particular requirement of particular document type.Or scanner can be defaulted as will process effectively not the setting of all documents, because scanner is not usually by by document ground particular requirement of having programmed.
Described preset property comprises the document characteristics such as such as size, weight, texture; And application-specific requires to be such as resolution and imaging pattern, color, single or double etc.In document scanner, may be changed by the document of scanning because of size, weight, color content, physical state or other characteristic, this can need to enable different scanning instrument feature or adopt Operator action could realize optimum and the most effective operator scheme.Can make it possible to appropriately select scanner feature to improve the efficiency of scanning process or to realize the further feature of the application-specific that can provide needed for particular document type, pattern or size to previously knowing of this many different document attribute.Also can point out from the protection document of operator or the action immediately of scanner to previously knowing of Document Physical state or allow the further feature in scanner to perform more reliably.
Scanner to exit region described through scanned document for collecting when exiting conveyer through scanned document.Once document is imaged, described document also must exit scanner in an orderly manner.By at input area and exit in region and distinguish document characteristic (characteristic such as but not limited to number of documents), ALARA Principle control stacking and follow the tracks of exit provincial characteristics.
During scanning process, existing may inaccurate several mode from the information extracted through scanned document.Document conveying system may make through scanned document distortion or wrinkling, dust or exogenous impurity may be there is in image capture optics, document possibility deflection or misalignment, or may select incorrect scanning feature (but being not limited to these modes), all these all can cause catching inaccurate information during scanning process.Inspection institute is needed to catch view data, especially in High Speed Document scanner.
The information on inspection institute's print image has been attempted in document print industry, but for the requirement of printed document and the requirement be different from for accurate scanning document.For example, No. 2008/0013848 U.S. publication discloses and lines by line scan to institute's printed document the defect such as such as streak or band etc. that checks in institute's printed document.No. 2003/0076518 U.S.'s publication discloses the printer being incorporated to the CCD grating acquisition equipment making the imaging of output pallet.Caught output image and the data being used for printed document are compared.
Summary of the invention
Briefly, according to an aspect of the present invention, a kind of method of catching the image of document comprises: the input pallet being provided for fixing document; The image of the first document in described input pallet is caught with input imaging device; The described input pallet image of wherein said document is caught as area image; By described the input pallet image emissions of catching of described document to image processor; Described document is transported to output pallet.
In the detailed description of preferred embodiments hereafter presented, the present invention and its target and advantage will become more apparent.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the side of conveyer from document scanner according to the present invention.
Fig. 2 is the perspective view exporting pallet according to scanner of the present invention.
Fig. 3 is the cross-sectional view of the side of through type conveyer from document scanner according to the present invention.
Embodiment
In particular, this explanation is formed being directed to according to the part of equipment of the present invention or the element that more directly cooperates with equipment according to the present invention.Should be understood that the not concrete element shown or describe can take the well-known various forms of those skilled in the art.
Fig. 1 is the side cross-sectional view of document scanner 10.As demonstrated in Figure 1, first document 20 is placed in the input pallet 30 of scanner 10.Described document is by advancing roller 45, then moving forward in scanner 10 by feed roller 50, and the separated roller 60 of additional documents 20 stops simultaneously.Document 20 continues through document conveyer 70, respectively by front grating acquisition equipment 80 and the imaging of rear grating acquisition equipment 90, and then move out conveyor outlet 130 and enter into and export pallet 150.
When document 20 exits conveyer 70 in conveyor outlet 130 place or afterwards, document 20 and export pallet 150 by the imaging of output imaging device 140.Image is sent to image processor 100 to distinguish document 20 and to export pallet 150 characteristic.
One exports pallet 150 characteristic is whether there is document 20 in exporting pallet 150.If export pallet 150 to be confirmed as sky, so processor 110 will determine can scan how many documents 20 before output pallet 150 becomes completely.Also determine the document content exporting pallet 150, it scans by processor 110 in order to the stopping when exporting pallet 150 and becoming full.If operator continues document 20 to be positioned over to input not from output pallet 150 removing documents (20) in pallet 30 when scanning, so this situation may occur.
It is stacking what export in pallet 150 that another key property is document 20.If document 20 is not self keep flat, so stopping scanning process preventing additional documents 20 stacking irrelevantly by processor 110.Incorrect stacking stacking 120 features of controlled output that can be operate or unexpected instruction of diverging irrelevantly.Based on output pallet 150 characteristic, the appropriate adjustment to exporting pallet flipper guide 160 or end stop 170 will be determined.Scanning can be stopped making operator adjust flipper guide 160 or end stop 170, adjustment feature automatically maybe can be adopted to correct while continuation scanning.
Based on the document information from input imaging device 40, compare to the state of the document 20 exiting scanner 10 with the state of the document 20 entering scanner 10, to determine whether to occur in document conveyer 70 to the damage of document 20 (such as, turning is bending or tear), as shown in FIG. 2.Processor 110 will then stop scanning process and remind operator.
Use the information from input imaging device 40, the number of the number entering the document 20 of document scanner 10 with the document 20 exiting scanner 10 can be compared.If the number exiting the document 20 of document scanner 10 does not mate with the number of the document 20 entering document scanner 10, the document 20 so will operator being reminded to have loss.
In C shape document conveyer 70, can use by exporting document 20 content that imaging device 140 catches in conjunction with rear grating acquisition equipment 90 to follow the tracks of document 20 order.Shown in figure 3 have in the document scanner 11 of through type document conveyer 70, can use by exporting document 20 content that imaging device 140 catches in conjunction with front grating acquisition equipment 80 to follow the tracks of document 20 order.
In one embodiment of the invention, the image of the document 20 in input pallet 30 is caught with input imaging devices 40 such as such as grating acquisition equipment, ccd sensor or cmos sensors.By catch input pallet image 190 and be transmitted into the such as image processor such as microprocessor or computer 100.Then document is conducted through document scanner 10, document scanner 10 catch document 20 through raster-scanned image 180, and image processor 100 will be transmitted into through raster-scanned image 180.Image processor 100 is by comparing the input pallet image 190 through raster-scanned image 180 and document 20 of document 20 accuracy checked through raster-scanned image 180.If not mating with the input pallet image 190 of document 20 through raster-scanned image 180 of document 20, scanner 10 function so can be revised or takes other corrective action.Corrective action can comprise makes grating acquisition equipment rotate, change color acquisition mode or clean imagery optical device.
The input pallet image 190 of document 20 to be caught as area image 210 but not with the catching by raster fashion through raster-scanned image 180 being such as generally used for catching document 20.The input pallet image 190 of document 20 can be low resolution or high-resolution.
In another embodiment of the invention, after document 20 exits scanner 10, document 20 is moved to the output pallet 150 for fixing document 20, and catches the image of the document 20 exported in pallet 150 with output imaging device 140.By catch and export pallet 150 image emissions to image processor 100, image processor 100 is by comparing through raster-scanned image 180 and the input pallet image 190 of document 20 and the output pallet image 200 of document 20 accuracy checked through raster-scanned image 180 by document 20.
In another embodiment of the present invention, the image for the document 20 in the input pallet 30 of fixing document 20 to be caught as area image 210 with input imaging device 40 but not is catch by grating.Being caught as area image 210 by described image and mean, is the image absorbing whole document 20, but not by document 20 by grating ground imaging, is the usual way of scanned document 20 by grating image.By catch input pallet image 190 and be transmitted into image processor 100, and document 20 be transported to export pallet 150.After the first document 20 has been transferred out input pallet 30, catches the image of the second document 20 in input pallet 30 and be transmitted into image processor 100.
In another embodiment, catch the image of the document 20 exported in pallet 150 with exporting imaging device 140 and be transmitted into image processor 100.By the input pallet image 190 of document is compared with the output pallet image 200 of document 20 accuracy checked and input pallet 30 image.
Although describe the present invention in detail with particular reference to some preferred embodiment of the present invention, will understand, various change and modification can be realized within the scope of the invention.
List of parts
10 document scanners
11 document scanners
20 documents
30 input pallets
40 input imaging devices
45 advance roller
50 feed rollers
60 separate rollers
70 document conveyers
Grating acquisition equipment before 80
Grating acquisition equipment after 90
100 image processors
110 processors
120 controlled outputs are stacking
130 conveyor outlets
140 export imaging device
150 export pallet
160 export pallet flipper guide
170 end stop
180 through raster-scanned image
190 input pallet images
200 export pallet image
210 area images
Claims (8)
1. catch a method for the image of document, it comprises:
Be provided for the input pallet of fixing document;
The image of the first document in described input pallet is caught with input imaging device;
The described input pallet image of wherein said document is caught as area image;
By described the input pallet image emissions of catching of described document to image processor;
Described document is transported to output pallet.
2. method according to claim 1, it comprises:
The image of the described document in described output pallet is caught with output imaging device;
Described the catching of described first document is exported pallet image emissions to described image processor; And
By the described output pallet image of the described input pallet image of described document and described document being compared the accuracy of the described input pallet image checking described document.
3. method according to claim 1, it comprises:
The image of the second document in described input pallet is caught with described input imaging device;
The described input pallet image of wherein said second document is caught as area image;
By described the input pallet image emissions of catching of described second document to described image processor; And
By the described input pallet image of described second document and the output pallet image of described second document being compared the accuracy of the described input pallet image checking described second document.
4. method according to claim 2, it comprises:
If not mating with the described input pallet image of described document through raster-scanned image of described document, so revise scanner functions.
5. method according to claim 4, wherein said scanner functions is selected from the group be made up of the following: grating acquisition equipment is rotated, changes color acquisition mode or clean imagery optical device.
6. method according to claim 1, the described input pallet image of wherein said document is high-resolution.
7. method according to claim 2, it comprises:
If the described of described document does not mate with the described input pallet image of described document through raster-scanned image, so remind document scanner operator.
8. check a method for the accuracy through raster-scanned image of document, it comprises:
Described document is conducted through document scanner;
With grating acquisition equipment catch described document through raster-scanned image;
Image processor is transmitted into through raster-scanned image by described;
Be provided for the output pallet of fixing document;
The image of the document in described output pallet is caught with output imaging device;
Described catching is exported pallet image emissions to described image processor; And
By checking the described described accuracy through raster-scanned image
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/714,885 US8879129B2 (en) | 2012-12-14 | 2012-12-14 | Method of capturing an image of a document |
| US13/714,885 | 2012-12-14 | ||
| PCT/US2013/075055 WO2014093844A1 (en) | 2012-12-14 | 2013-12-13 | Method of capturing an image of a document |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105009560A true CN105009560A (en) | 2015-10-28 |
Family
ID=50930547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380065609.0A Pending CN105009560A (en) | 2012-12-14 | 2013-12-13 | Method of capturing image of document |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8879129B2 (en) |
| EP (1) | EP2932702B1 (en) |
| JP (1) | JP2016500498A (en) |
| CN (1) | CN105009560A (en) |
| WO (1) | WO2014093844A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9270838B2 (en) * | 2010-07-20 | 2016-02-23 | Kodak Alaris Inc. | Verifying accuracy of a scanned document |
| WO2020159514A1 (en) * | 2019-01-31 | 2020-08-06 | Hewlett-Packard Development Company, L.P. | Media scanning assemblies |
| WO2020222814A1 (en) | 2019-04-30 | 2020-11-05 | Hewlett-Packard Development Company, L.P. | Automatic document feeder with automated media tray extender |
| US11827480B2 (en) | 2019-07-31 | 2023-11-28 | Hewlett-Packard Development Company, L.P. | Automatic document feeder with automated media tray |
| WO2021025665A1 (en) | 2019-08-02 | 2021-02-11 | Hewlett-Packard Development Company, L.P. | Rotatable media ramp for automatic document feeder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040239959A1 (en) * | 2001-09-12 | 2004-12-02 | Seiko Epson Corporation | Image processing apparatus and method |
| US20120044548A1 (en) * | 2010-08-18 | 2012-02-23 | Schaertel David M | Method of scanning documents |
| US20120044547A1 (en) * | 2010-08-18 | 2012-02-23 | Schaertel David M | Document scanner |
| CN102959935A (en) * | 2010-07-20 | 2013-03-06 | 柯达公司 | A document scanner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424804A (en) * | 1994-03-23 | 1995-06-13 | Eastman Kodak Company | Automatic exposure control using density slope control for a planetary microfilmer |
| JP4055385B2 (en) * | 2001-10-11 | 2008-03-05 | 富士ゼロックス株式会社 | Image inspection device |
| JP4423057B2 (en) * | 2004-02-05 | 2010-03-03 | 株式会社 大野印照堂 | Rubber stamp back printing device |
| JP4538845B2 (en) * | 2004-04-21 | 2010-09-08 | 富士ゼロックス株式会社 | FAILURE DIAGNOSIS METHOD, FAILURE DIAGNOSIS DEVICE, IMAGE FORMING DEVICE, PROGRAM, AND STORAGE MEDIUM |
| US7783122B2 (en) | 2006-07-14 | 2010-08-24 | Xerox Corporation | Banding and streak detection using customer documents |
| US20110238423A1 (en) * | 2010-03-29 | 2011-09-29 | Schaertel David M | Sonic document classification |
| US8749801B2 (en) * | 2011-10-13 | 2014-06-10 | Kodak Alaris Inc. | Determining document characteristics prior to scanning |
| US20120019874A1 (en) * | 2010-07-20 | 2012-01-26 | Schaertel David M | Method for document scanning |
| US9036222B2 (en) * | 2010-07-20 | 2015-05-19 | Kodak Alaris Inc. | Document scanner |
| US9217980B2 (en) * | 2011-10-14 | 2015-12-22 | Kodak Alaris Inc. | Jam sensing at document feeding station |
-
2012
- 2012-12-14 US US13/714,885 patent/US8879129B2/en active Active
-
2013
- 2013-12-13 EP EP13861630.5A patent/EP2932702B1/en active Active
- 2013-12-13 WO PCT/US2013/075055 patent/WO2014093844A1/en active Application Filing
- 2013-12-13 JP JP2015547994A patent/JP2016500498A/en active Pending
- 2013-12-13 CN CN201380065609.0A patent/CN105009560A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040239959A1 (en) * | 2001-09-12 | 2004-12-02 | Seiko Epson Corporation | Image processing apparatus and method |
| CN102959935A (en) * | 2010-07-20 | 2013-03-06 | 柯达公司 | A document scanner |
| US20120044548A1 (en) * | 2010-08-18 | 2012-02-23 | Schaertel David M | Method of scanning documents |
| US20120044547A1 (en) * | 2010-08-18 | 2012-02-23 | Schaertel David M | Document scanner |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2932702A4 (en) | 2016-08-10 |
| EP2932702B1 (en) | 2020-06-24 |
| US20140168717A1 (en) | 2014-06-19 |
| US8879129B2 (en) | 2014-11-04 |
| JP2016500498A (en) | 2016-01-12 |
| WO2014093844A1 (en) | 2014-06-19 |
| EP2932702A1 (en) | 2015-10-21 |
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